/* 样式文件 */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f9;
}

header {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 20px;
}

header nav a {
    margin: 0 15px;
    color: white;
    text-decoration: none;
}

main {
    padding: 20px;
}

section {
    margin-bottom: 40px;
}

form input, form textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
}

form button {
    padding: 10px 20px;
    background-color: #333;
    color: white;
    border: none;
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}
